Metallurgical furnace.



4 SHEETS-SHEU I.

Patented- Mar. 28, 19,16,

L, METESSER.

4 METALLURGICAL FURNACE.

` APPLICATION FILED MAR. 1915. 1,177,429:

L. METESSEB. METALLURGICL FURNACEI APPLICATION FILED MAR. Il, |915.

Patented Mar. 28,1916.

` N lll= lllll IQ@ @@x' L. METESSER.

METALLURGICAL FURNACE.

Arrucnlon FILED MAM?. m5.

Ptented Mar. 28, 1916.

4 skiers-snaar 4.

LEwIsuMErEssEn, oF NEWfon'nnnNs,y LoUxsIANA.

nm-ALLULGICAL rn'nimcn Specic'atlonvoi' Letters Patent.

Patented Mar. 28, 1916.

Application Med-Hatch 17, 1915.` Serial No. 15,013.

' citizen ofthe United States, residing at New i annealedgior otherwise`treated andto kilns fornodnlizingandvitrifyingpk l l Anf:impnrtnntlobject of the invention;` is

to providerr improvedf apparatus for.z prefers` ably intermittentlylfeedingw `predetern-ir'ieuf i itslyentire fwidth, nt desiredvinteril'als,

A1' further object? of, the; invention is to provide un ,i improvedgratef which? is `j1` wateri cooled, Aand Lwlich'fis so constructedtliat1 the disksy included r tleieinmay bef replaced whenwhrolen 1inn-lhigrlily convenient manner and linvthe `minimum timeA1frtherfwjecufahe inv'enun .is mprofi 'videLa-n improved?,water-b'acklf11 adapted to ing the' watertojtlie 'lshafftsc v y* A'`furthery object-f2 of?,` the invention is@` tp provideimprqvedfmechnnism iforg operntiny or rotatingl thef 'gratemembers,4which*` lsf' improve the. construction-lof :Ineens Vvfr rwithesired-'fpointremote? charactrgqwhichis designed and f 'constructed tov-admit of its` operation whereby 't ,various combinations ofgasesain-steam and other vapors,-fmay be `readily?, had for producingmelting, puddling,

lprovein general" the? esisto .Figs-1,,andilokingin.thedirecuon ndesired degrees of combustion, heat, and chemical mixtures, within thefurnace, to perform the required Work, such as heating, converting,annealing, roasting, or carbonizingvthe metal or its alloy, infurnacesnndfnodulizing and vitrifyingin kilns A- further object of'`this invention is to providea furnace of the above mentionedcharactenwhich is designed and constructed to .admit of its operationwhereby the metals or materials being treated therein Will receivethergraduated or'maxiinum amount of heut -and chemical treatment fromthe i prod uctsof'combustion orhot gases, and the roof andk W'zillsvor`masonry of thel furnace sub-k jected to a uniform or even distributionof lieatwhereby the 4expansion of the' same is elyized,"1iireventing=ithe roof ofsuch Walls ormasonry fromm unduecracking, falling I A-furtherobjectof'the invention is tof provide-afurnacey ofv the above `mentioned I character,r :which i is Iofsimplified design sind construction to: enableits u operation by un-4skilled lalaborancl wh-ich `,vv'illflast-a long time.

Aif-furtherfobjectvof the invention? is to imconstruction f -urnacesfof` this;- character, ,vvithly a view-c o increasing-their elicency -fof"operation Other objects Aand ndvnitages" oflthe invention v will f'bejay y es''criptig'ni-y In-wthelaccmpanyingdrawings .forming alc'iztionf'and ',invwhich like numerals are?employed.I .tof'designate`like parte.throngl`iont`-1thev same; Figure l is a central Yvertlcnllongitudinal sectional View through :apparatulsenibodyin {1r-.myinvention, Figi? :jan end, elevation, hxiif thereof being, shoin-{transversesection, taken on line Aparenti,during the. courseelevetion'iof'fone ofthe rotatable grate.ni'ernfh-` 'i 9`5' tion,vFig",` 4`is` a centralylongitndinal sec bers,"LT withthe Wateriba'ck intransverse scctional view through a plurality of the grate disks andthetubular*shaftcarrying them, Fig. 5,is a side elevationof one of thegrate disks, ig. G isan edge elevationvof the same,

shafts 33 `extend 17, and alternate tublllll SlllgfS 1.13"@

'introducing steam or. other shaft and the` end disk again returned uponthe shaft and locked thereto.

v As above stated, the 'forward ends of the outwardly beyond thesn'iall. inner pnions 46 rigidly mounted thereon, which are engaged bythe teeth of a raclobar 46', mounted .to hOIZOIllll lf ciprocate, andconnected at one end with a piston 47, reciprocating in a cylinder i8,Any suitable means may be employed for fluid' pressure into theopp'ositeends of the cylinder to reciprocate the piston and rackbar,

I Wish it lui'ldeistood that.the invention is inno sense restricted tothe use'of the cylinder and pion to reciprocate the' rack.- bar, asitmay be accomplished by any other suitable'means Ri idlymounted upon eachoffthe tubular sha ts33 outwardly of` the smallk pinions 46V are largepinions 4 9, `in engagement with-each' other and consti.- tutingatrainoff` gears. .It is `obvious that the rotation imparted Sto thealternate tnbu.- larusha-fts` is transmitted rfto the large pin-` ions`4 9, whereby lall Aofv the tubularA shafts 'age' Iliade` tosimultaneously rotate. stroke of the .rack-bar-A is p The referably suchin either` direction to turn the tubular shafts,

foragfcomplete revolution.y `larticular at- `tentio'nlis'calledlto theVfact that the grate membersin alternate pairs or couples rotate inopposite directions to cachV other.

The .alternatev pairs; also rotate in opposite directions, t'o wit, whenthe grate wmembers yin`\one .pain are. rotating, downwardly rducingacruslijing action, thegrate mem ers inthefadjacent alternatepairare rotating upwardly, producing anfagitating action. The inions 46and 49 are` ooveredby. a guar `50, rigidly attached-to the plate 17, asshown. y

,ArrangedA above thetopl of the camionsl tion chamber 16 iand `extendingtransversely thereof forfits-entire Widtltis'fafhcpper 51,

having an outletV chute 52 eztending across the' combustionchan/iberentirewidth. :,)The--coalor like material is fed i; into the liopper-f-`and is intermittently fed `upon, the' grate iny the lcombustion chamber,by af rotary hollow feed valve 53,1 This. feed valve, as more clearlyshown 1 in. Figs` 14a-nd 15,` ,is',formed1of a' section of .pipe ortube, havinggone' 4side thereof cut away. vatifi, such'cuta'way por ynear and yspaced -fmthe ends of the valve providing. rings 55, the endsofil which are.` closed fiby. heads; 5,6. Wheels 57 are rigidly .mountedwithin the rings 5S `having a The"` wheels 57 and 58 are rig- '1idlyVrnounted 'upon' a horizontal rotatablev shaftvv59,ext endingoutwardly beyond the ends of the rotatable valve. The rotatablelaterally Fig.. 1:

for` substantially'its ion terminating vat points and ya. wheel.

portion thereof cut away 4 is rigdlymounted in thevalve 53between the,end's thereof.

pleterevolution of the tubiigr valve from 'preferably consists of asprocket wheel 61,

rlgidly secured theretov and driven by a sprocket chain (not shown) inturn receiving its rotation `from any suitable source of Den'er- The'ash removing apparatus, con1prises a .trough more clearly shownin Figs.l, 2, 11 and 12, whichiis arranged beneath the inclined bottoni 23 andhaving ifSzOP flush' therewith. This trough' is provided with .extendingflanges .63, engaging the Alower side of the bottom. 23, as` shown inRotatably mounted within the. trough 62 is a screw .conveyer 64,preferably formed of cast iron andpreferably made in sections 65,having. hubs 66, provided with openings' which are square incross-section for receiving a. driving shaft; 67, also square in crosssection. The ends ofthe shaft 67 areV cylindrical, to 'be journaled` inhanger bearings 67?, and this shaft may be supported 'inbearingsbetweenits ends', if de- 7 1, engagedby an endless conveyor:sprocket chain 72, engaging a sprocketwheel .73, having any. desiredlocation, the direction in which itisdesiredto extend the 'conveyer 72,and operatein one o .the a'lpits 68 in proximity to the discharge endofthe screw conveyor, for takingfupv the ashes fand'-` con.- ductingv`them to any pi es.69.

ing chamber 26'are horizontalskidpipes 7 5, which are laterally spaced lthe. top and bottom of'the"chamber'26,lthe same being held elevated bytiles 76.v These pipes extend preferably 4 end wall of the casing tionwith a source of water (not shown). These pipes serve to slidablysupport blooms depending upon de siredgpointfThese seal pits' 68f-areprovided" with: overfow to vdischargelm the ashes. Buckets .74 are.carriedkb ithesgrocket chain.

Xtending longitudinally withintheheat`v 4 and spaced `from I orxmftal785 whichare forced alon ythese skidpipes by any suitable' mearvs to l.-arged upon a cast iron chill A9,

' led bywater and supported by the bridge '11f 24. Connected with ythedown turned ds' SQ ofy vthe pipesj amy-couplings; 8 1, ha',ngconnectlonjvith pipes preferably a smaller diameter-,than 'the` lpipes'(5,j as

o io'irr' @mi of amener-'bwk 35, fer feeding ffufatertliereto, while'the4Water"'may be fecl "pipes" '83', of 'smaller diameter.

^ tures'8 5discharging the Watendownwarolly ijs ,preferably permanently'partly filled 'with "Weten,

vnml."

, Inprder utilize the "heat contained tici). beforefthey discharge tothestack atmosphere,' If arrange" airV heating pipes the chamber 28',such'pipes being ,of irf construction vv vheieby they have :range 'ofadjust'a^bility v AS clearly hajgie'd, and provided at its endsj with I7a ges" szbiqued or' eeuwige -rigidiyaa y hapd" inipes niayfallbe'arrangedlhcniH zontally, or veiftically, o r some horigontally top-withhorizontal inwardly' discha'rg '1 outlet .87`r Communicating with lthetal. outlet 87. are txt ansvei'sely ar'glly, to deiect the preheated airrearwardly. "Thereare two .iotatio'u is imparted v'to feed valve feedvalve by retating in the' e diswhich isshown."ffTheipes' 82dischargedintopthe "thf the ltopf of the' water-back "ai-'fiyas e ipipesB8, discharging" into the lchainbenll `The tubularrods farefpro-fyid''d' near 1.their forvvjard ends 'with apenr ufliiclil co-inpletelysubnierges the onyeyei and 4also .constitutes a v1water el v4theili'szention or scopeofjthe ndothers vertically," andtheyinayjbeitiugffchnnibei- 26', as shown. The" ends zontals rotatable l' g,Which eects a1 continuous rotation yof the .i spiral orscrewcnveyenieeding the'ashes @zo clonveyer7,72,v whereby "it isIcerried j from l.proximity toy ,th'efscrewLfconveyeigy by the buckets.,yv74'. The: water ris continuously fsupf 1 f plied into theyrateiback 35'and circulates -75 y iorvivardly throughithe tubular. shafts 33,'

discharging Y through the. apertures 85,-v and 7 passing into thewaterashpit 22, after cooling the grate members.I When itis desired.

to rotate the gratemembers'ffor shaking `8o :Hof the assatd PDOllS,turns the tubular. `|85 -shafts and disks carred'the'reby. 'l

It is to be. understooclithatthe formi-lof my linvention herewithshownand described lirs to-be taken as 'a' preferred examplepf the saine, andthat various changeslilL-.theshape, 9 0 size,' fandarrangement, of:lparts may be ,resorted .to Withoutolepaitingfiom the'.

`joined claims.

` l. InfraE furnace of ranged-within the casing andjprovided 'near- 1 00theinfforward ends with'water outletopen-A ings, a v hollow waterba'ckarranged Within the casing ja'lj acent. the .rear ends of fthevtubular[grate shafts-and;upertured tore-1 `oeive themLfor-{supplying'water thereto, 135 means for supplying Water 6to 1 the hollow extendingdownirardly toward the center apertures l in theb ate --s nits,andumonveyer disposedheneathgthe upper.' surace 'oi ranged. jwithi@ubulrligrejgishaft www fuel thereto, an ashfpt arranged In 'testimonyWheeof: I affix myl signa- ?wxthm the casmg .beneath the disks and turein presence of two witnesses. adaptedto receive mshes from the disks andwaiergfrbm the'utlet apertures of the grate y LEWIS METESSER' 5,jihatsgyand a submerged conveyer operating 'Wtnessesz :,jgbhin. @le@sh-pit to lremqve ashes there- C. L. PARKER,

JAMES L. CRAWFOD.

